The lowest design temperature of API standard 650 unanchored liquid-storage tanks
Surface Inspection of low-pressure storage tank Component PartsBefore assembly, unless already so certified by shop inspectors, all sidewall plates or sections and roof and bottom plates shall be inspected for thickness, freedom from injurious defects, and soundness of any welded joints.Check of Dimensions of API standard 650 unanchored liquid-storage tanks Component PartsAll formed plates and curved sections shall be checked for conformance with the planned dimensions and cross section. For unusual repairs the inspector should keep a record of measurements taken at sufficient intervals to constitute a satisfactory record.Check of Chemical and Physical Property DataThe inspector shall check the material being assembled by the lists of the plates from the mill, their heat numbers, chemical analyses, and mechanical properties as given on mill reports and shall see that copies are available to be attached to the Manufacturer’s report.
API 650 storage tank, double-layer oil tank environmental protection advantages: ordinary single-layer steel API standard 650 unanchored liquid-storage tanks oil tank is corroded by underground water and gas and electrolytic corrosion because it is buried underground all year round. The API 650 tank has a double-layer structure with a gap of 0.1 mm. The API standard 650 unanchored liquid-storage tanks outer layer of FRP ensures that the leakage will not directly leak into the soil and water source.
When encountering heavy rain or continuous heavy rainfall, the safe operation of API standard 650 unanchored liquid-storage tanks will be affected. For example: the API standard 650 unanchored liquid-storage tanks is submerged, the oil unloading valve and the flame arrester valve are broken by water and the oil tank leaks. The oil tank area must do emergency work to prevent rainstorm to ensure the safety of the oil tank. Here are some safety protection measures for API standard 650 unanchored liquid-storage tanks in heavy rain.
